Derrick.



0. G. MOORE.

DERRICK.

APPLICATION FILED APRIQ, 191s.

Patented Nov. 18, 1913.

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COLUM UNTTED STATES PATENT OFFICE.

OTIS G. MOORE, OF KNOX, PENNSYLVANIA, ASSIGNOR OF ONE-THIRD T0 CUVIER L.CLOVER, OF KNOX, PENNSYLVANIA, AND ONE-THIRD T0 CHARLES R. MOORE, OF

ST. PETERSBURG, PENNSYLVANIA.

DERRICK.

Specification of Letters Patent.

Application filed April 3, 1913.

Patented Nov. 18, 1913;

Serial No. 758,695.

This invention relates to new and usefulimprovements in derricks, andmore particularly to a combination casing derrick, oil p umper and oilrock heater.

An object of this invention is the provision in connection with an oilwell of a bailer adapted to be lowered in the well and to containboiling water, for the purpose of melting the paraffin contained in theoil rocks, and thereby producing a greater flow of oil, the said baileralso serving the purpose of removing oil from the well.

A further object of this invention is to improve and simplify devices ofthis character rendering them comparatively simple and inexpensive tomanufacture, reliable and eflicient in use, and readily operated.

With the above and other objects in View, this invention resides in thenovel features of construction, formations, combinations andarrangements of parts to be hereinafter more fully described, claimedand illustrated in the accompanying drawing, in which Figure l is a sideelevation of my invention, partly in section; and Fig. 2 is a horizontalsectional view of the bailer. I

Referring to the accompanying drawing by similar characters ofreference, the numeral 10 designates the upper end of the easing of anoil well, which is exteriorly threaded, as at 11, to receive thedepending flange 12 of a base plate 13, which is thus supported rigidlyupon the upper end of the casing 10. A similar plate 14 but less indimensions is supported above the plate 13 over the casing 10 and isconnected to the said plate 13 by the tubular rods 15. The .plate 14 isformed with a central opening 16, disposed in registration with theopening of the casing 10, and preferably centrally thereof. The plate 14and rods 15 are held against any undesired tilting movement and bracedby the guide wires 17 which are attached in any preferred manner to theplate 14.

- A pulley 18 is journaled upon one of the rods 15 and receives thecable 19 one end of which is secured to a drum 20, the latter beingmounted upon a drive shaft 22, which is rotated through the medium ofthe motor v 23 controlled by the clutch 24. This shaft 22 is journaledinbearings 23 attached to the casing 10, and lower ends of the adjacentrods 15, while the op osite end of the cable 19 is connected td a pistonrod 25 which has keyed to its opposite ends respectively a weight 26,and a iston 27, the latter of which is slidably disposed within acylindrical bailer 28, formed in one end with a stufling box 29 throughwhich the piston rod 25 oscillates, and at its opposite end with a valveseat 30, for engagement with a valve 31, the stem 32 of which projectsthrough the lower end of the bailer and is provided with a trip member33.

A water receptacle 34, is mounted upon the plate 13, while the watercontained therein can be heated by a gas jet 35, which is supplied fromthe gas contained within the oil well, through the pipe 35. A similarreceptacle 36 is disposed upon the opposite side of the plate 13 and isconnected by a pipe 37 to an oil tank, not shown. Operating arms 37 arepivoted to the tubular rods 15 and can be operated by means of the cable38 to swing the bailer 28 in the direction of the receptacle 34.

The operation of the device is as follows: The bailer 28 is raised to apoint above the upper end of the receptacle 34 by means of the cable 19and drum 20, and then lowered into the said receptacle until the tripmember 33 releases the valve 31. The cable 19 is then operated to raisethe piston 27 within the bailer which draws the heated water into thesame. The bailer containing the hot water is then lowered into the welland the heat therefrom melts the paraffin contained within the oilrocks, and produces a greater flow of oil. The bailer is then removedand the Water forced from the same by the downward movement of thepiston 27 caused through the instrumentality of the weight 26. Thebailer 28 can then be again lowered into the well until the trip member33 engages the lower end thereof which obviously unseats the valve, 31.The cable 19 is then wound upon the drum which causes the upwardmovement of the piston 27 Within the bailer 28 thereby sucking oil intothe said bailer. 'When the piston 27 contacts with the upper. end of thebailer, the bailer,

upon further movement of the cable will be raised out of the well, andthe oil can be removed therefrom and deposited into the re- I ceptacle36 in a manner similar to that in whlch the water is removed from theballer,

and the oil will then flow through the pipe 37 into a receptacle, notshown.

From the foregoing description taken in connection with the accompanyingdrawing it will be manifest that a derrick such as described is providedwhich will fulfil all of the necessary requirements of such a device.

It should be further understood in this connection that I not to belimited to the specific construction herein shown, but may -=rn-ake anyminor changes without departing from orsacr-i-ficing any of theadvantages of Q the invention, and can also use the derrick inconnection with any other obj-cot to which the various parts thereofwill adapt them- 5 selves.

Having thus fully described this inven tion what I claim as new anddesire to pro tect by Letters Patent is:

l. The combination with a casing such as described, of a plate having aflange formed thereon attached to said casing, rods connected to saidplate, a second plate connected :to the upper ends of the rods, ,aplurality of i ond plate attached to the opposite ends of the rods, ashaft supported by the rods and the casing, a drum upon the shaft, means.for rotating the shaft, a cable attached to the drum and passing overthe pulley, a piston rod connected to the cable, a weight attached tothe piston rod, a piston attached to the piston rod, a bailer receivingsaid piston, a valve controlling the bailer, and means for operating thevalve.

3. The combination in a derrick of a plate, supporting means upon saidplate, a bailer supported thereby, receptacles disposed upon the plate,a tank communicating with one receptacle, means for heating the otherreccptacl'e, and means for attaching the plate to a casing such asdescribed.

I 4. An apparatus for increasing the flow of oil wells consisting of ahot water boiler, a bailer adapted to receive hot water from saidboiler, and means for lowering the bailer [with the contained hot waterinto the well whereby the heat from the hot water melts the paraflincontained in the oil bearing rock and thereby produces a greater flow ofoil.

5. An apparatus for increasing the flow of oil wells including a hotwater boiler, a gas burner operatively connected to the oil well casingand receiving gas therefrom, said burner directing its flame on saidboiler, a 'bai-ler, means for charging said bailer with hot water fromsaid boiler, and means for lowering said 'bailer with the contained hotwater into said Well whereby the heat from said hot water melts theparaffin contained in the oil bearing rock and produces a greater flowof oil.

In testimony whereof I hereunto aiiix my signature in the presence oftwo Witnesses.

OTIS G. MOORE.

WVitnesses:

C. BEATTY, A. N. WRIGHT.

i copies of this patent may be obtained for five cents each, byaddressing the Gommissioner of Patents, Washington, D. G.

